I just purchased two 22733523 (KOBGT04A) FOB's off ebay. I assumed it would be the same as an 06 Cobalt but maybe not? I tried programming them with my Tech2 but it doesn't appear to detect either of them when I press both the lock & unlock buttons at the same time. I tried one, then the other, then both. Just counts down from 60 and then gives the error message that it didn't detect anything (I forget the exact message).